Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing my new design; and,

FIG. 2 is a front view of the generated image of FIG. 1, in which a mobile terminal in broken lines is provided to illustrate an example environment.

The broken line drawing of the mobile terminal, the numbers, symbols and other images illustrate environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 